1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16declare function AssertType(value: any, type: string): void; 17 18class Base { 19 public _array : number[]; 20 public _stringArray : string[]; 21 22 public test() : string { 23 return "test"; 24 } 25} 26 27class Student extends Base { 28 public _array : number[]; 29 constructor() { 30 super(); 31 this._array[0] = 0; 32 this._stringArray[0] = "hello"; 33 34 AssertType(this._array, "number[]"); 35 AssertType(this._array[0], "number"); 36 AssertType(this._stringArray, "string[]"); 37 AssertType(this._stringArray[0], "string"); 38 AssertType(this.test(), "string"); 39 } 40} 41